Home / 8,190,639.10-12,285,958.65-8,031,206.80

Finding the Fourth Proportional to 8,190,639.10, 12,285,958.65 and 8,031,206.80

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Solution

The fourth proportional to 8,190,639.10, 12,285,958.65 and 8,031,206.80 is: 12,046,810.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,190,639.10 : 12,285,958.65 = 8,031,206.80 : x
  2. Step 2: Convert to fraction form
    8,190,639.10/12,285,958.65 = 8,031,206.80/x
  3. Step 3: Cross multiply
    8,190,639.10x = 12,285,958.65 × 8,031,206.80
  4. Step 4: Simplify right side
    8,190,639.10x = 98,671,074,654,398.83
  5. Step 5: Solve for x
    x = 98,671,074,654,398.83/8,190,639.10
  6. Step 6: Final answer
    x = 12,046,810.20

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.